One vertex per element, one color per generator, with an edge from x to x·s.
(4,11)(7,9)(12,16)(14,15)(17,18,23,28)(19,26,21,24)(20,25,31,29)(22,30,32,27)(33,34,38,39)(35,42,40,36)(37,41,45,46)(43,48,47,44)(1,2,6,3)(4,7,11,9)(5,10,13,8)(12,15,16,14)(19,21)(22,32)(24,26)(27,30)(34,39)(35,40)(37,45)(44,48)(2,3)(7,9)(8,10)(14,15)(17,19,23,21)(18,24,28,26)(20,30,31,27)(22,29,32,25)(33,35,38,40)(34,36,39,42)(37,43,45,47)(41,44,46,48)(1,3,6,2)(4,7,11,9)(5,10,13,8)(12,14,16,15)(17,20)(18,25)(19,27)(21,30)(22,26)(23,31)(24,32)(28,29)(33,36)(34,40)(35,39)(37,44)(38,42)(41,47)(43,46)(45,48)(1,4)(2,7)(3,9)(5,12)(6,11)(8,14)(10,15)(13,16)(17,21,23,19)(18,26,28,24)(20,27,31,30)(22,25,32,29)(33,37)(34,41)(35,43)(36,44)(38,45)(39,46)(40,47)(42,48)(1,5)(2,8)(3,10)(4,12)(6,13)(7,14)(9,15)(11,16)(17,22,23,32)(18,27,28,30)(19,29,21,25)(20,26,31,24)(33,36)(34,40)(35,39)(37,44)(38,42)(41,47)(43,46)(45,48)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.